I use an Alesis Q6.1 with my band, 64 key and I love the piano sounds. The rest of the strings, organs horns and whatnot are good, and I really like the pad-style synth sounds...leads are OK too but I use my microKORG for that type of stuff. They don't make them anymore but they have the Alesis QS6.2 if you wanna look into that. I don't have any other keyboards, hope that helps...good luck and let us know